CN201021087Y - Improved tractor driving wheel differential height device - Google Patents
Improved tractor driving wheel differential height device Download PDFInfo
- Publication number
- CN201021087Y CN201021087Y CNU2007200189856U CN200720018985U CN201021087Y CN 201021087 Y CN201021087 Y CN 201021087Y CN U2007200189856 U CNU2007200189856 U CN U2007200189856U CN 200720018985 U CN200720018985 U CN 200720018985U CN 201021087 Y CN201021087 Y CN 201021087Y
- Authority
- CN
- China
- Prior art keywords
- rocking arm
- lever
- outer peripheral
- peripheral face
- tractor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangement And Driving Of Transmission Devices (AREA)
Abstract
The utility model discloses an improved differential height device for a tractor driving wheel, the improved differential height device comprises a left rocker arm and a right rocker arm which can be used as a final gearbox body. The second end of the left rocker arm can be rotationally enclosed on the circumferential surface of a left power output half axle, the second end of the right rocker arm can be rotationally enclosed on the circumferential surface of a right power output half axle; the utility model also comprises a lever hinged on a tractor frame, and a hydraulic cylinder hinged between the tractor frame and the lever, the lever is laterally arranged along the tractor frame, one end of the lever is hinged with the left rocker arm through a first connecting rod, and the other end thereof is hinged with the right rocker arm through a second connecting rod. The structure of the utility model is simple, the production cost is low, the stress of each part is reasonable, and the simple reform is directly operated on the basis of the existing walking tractor, to make the utility model suitable for using in the mountainous area or the upland area with high slope grade.
Description
Technical field
The utility model relates to the trac. technical field, relates in particular to a kind of device of two drive wheel relative heights of scalable trac..
Background technology
The left and right sidesing driving wheel of most of known walker tractor is fixed on the same axis, can not adjust the relative height of its left and right sidesing driving wheel along with the slope change of walking region, turn on one's side easily when laterally walking in the hillside fields, only suit on the level land or hillside fields operation that the gradient is less, and can not be applied to bigger mountain region of the gradient or intersected country.Chinese patent CN1579121A discloses a kind of hillside tractor, it is arranged at the height difference apparatus of change speed gear box by a cover, drive is rotated simultaneously in opposite directions around the left and right sides connection pipe of left and right moving power output shaft outer peripheral face, the rotation of left and right sides connection pipe makes the rotational of the rocking arm of captive joint with it around the takeoff output semiaxis, make the left and right sidesing driving wheel that is fixed in the rocking arm other end do upper and lower motion, thereby the diff-H of having realized two drive wheels is regulated.Though this height difference apparatus compact conformation of this patent disclosure, use also more convenient, but, because the effect of gravity, on the connection pipe of the left and right sides, can produce a torque, although height difference apparatus overlaps the swing self-locking that the worm and gear device has been realized rocking arm by one, this torque is done for a long time and is used for this cover worm and gear device, can influence its service life.Simultaneously, this height difference apparatus structure is too complicated, and manufacturing cost is higher.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of improved height difference apparatus for tractor driving wheel is provided, and this height difference apparatus is simple in structure, low cost of manufacture.
For solving the problems of the technologies described above, the technical solution of the utility model is: improved height difference apparatus for tractor driving wheel, but the left rocking arm and the right rocking arm that comprise the final transmission case body of double as, described left rocking arm and right rocking arm have first end that is installed on left driving wheel and right drive wheel respectively, with second end around the outer peripheral face of left takeoff output semiaxis and right takeoff output semiaxis, second end of described left rocking arm is rotationally around the outer peripheral face of described left takeoff output semiaxis, and second end of described right rocking arm is rotationally around the outer peripheral face of described right takeoff output semiaxis; It also comprises a lever that is articulated in tractor frame, and be articulated in hydraulic actuating cylinder between tractor frame and the lever, described lever is along the horizontally set of tractor frame, and the one end is hinged by first connecting rod and left rocking arm, and its other end is hinged by second connecting rod and right rocking arm.
As a kind of improvement, it also comprises around the outer peripheral face of described left takeoff output semiaxis and is fixed in the left support sleeve of gear box and around the outer peripheral face of described right takeoff output semiaxis and be fixed in the right support sleeve of gear box; Second end of described left rocking arm is sheathed on the outer peripheral face of described left support sleeve; Second end of described right rocking arm is sheathed on the outer peripheral face of described right support sleeve.
As a kind of optimal way, the hinge-point of described lever and tractor frame is positioned at the midway location of lever.
After having adopted technique scheme, because second end of described left rocking arm is rotationally around the outer peripheral face of described left takeoff output semiaxis, second end of described right rocking arm is rotationally around the outer peripheral face of described right takeoff output semiaxis; Lever is articulated in tractor frame, hydraulic actuating cylinder is articulated between tractor frame and the lever, described lever is along the horizontally set of tractor frame, the one end is hinged by first connecting rod and left rocking arm, and its other end is hinged by second connecting rod and right rocking arm, so, during the hydraulic actuating cylinder lifting, lever will swing up and down around its hinge-point, and then, drive left rocking arm and the backswing simultaneously of right rocking arm by first connecting rod and second connecting rod.After adjusting,, make two drive wheels and frame remain on a fixing relative position, thus, realized that by simple structure the diff-H of two drive wheels is regulated by the hydraulic oil in the hydraulic control device confining liquid cylinder pressure.
When the hinge-point of described lever and tractor frame was positioned at the midway location of lever, the amplitude of two drive wheel backswings was identical, and the axis projection of adjusted two drive wheels in horizontal surface is located along the same line.
Because it comprises also around the outer peripheral face of described left takeoff output semiaxis and is fixed in the left support sleeve of gear box that second end of described left rocking arm is sheathed on the outer peripheral face of described left support sleeve; And around the outer peripheral face of described right takeoff output semiaxis and be fixed in the right support sleeve of gear box, second end of described right rocking arm is sheathed on the outer peripheral face of described right support sleeve, so the torque that acts on the left and right rocking arm can not act on left and right takeoff output semiaxis, can not make it be subjected to extra application force, thereby improve the service life of change speed gear box.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the forward structure scheme drawing of the utility model embodiment;
Fig. 2 is the cutaway view of middle rocking arm part embodiment illustrated in fig. 1;
Fig. 3 is the schematic diagram of middle lever segment embodiment illustrated in fig. 1.
The specific embodiment
A kind of improved height difference apparatus for tractor driving wheel, shown in Fig. 1 and Fig. 2 are common, but the left rocking arm 3 and the right rocking arm 3 ' that comprise the final transmission case body of double as, described left rocking arm 3 and right rocking arm 3 ' have first end that is installed on left driving wheel 4 and right drive wheel 4 ' respectively and around second end of the outer peripheral face of left takeoff output semiaxis 11 and right takeoff output semiaxis 11 '.Be respectively equipped with final driving device 9 in a left side and right final driving device 9 ' between left side takeoff output semiaxis 11 and right takeoff output semiaxis 11 ' and left driving wheel 4 and the right drive wheel 4 ', they can be chain gearing, also can be belt driver or gear system etc.
Left side support sleeve 6 is around the outer peripheral face of described left takeoff output semiaxis 11 and be fixed in gear box 1, and second end of described left rocking arm 3 is sheathed on the outer peripheral face of described left support sleeve 6.Right support sleeve 6 ' is around the outer peripheral face of described right takeoff output semiaxis 11 ' and be fixed in gear box 1, and second end of described right rocking arm 3 ' is sheathed on the outer peripheral face of described right support sleeve 6 '.
Shown in Fig. 1 and Fig. 3 are common, this height difference apparatus also comprises a lever 7 that is articulated in tractor frame 2, and be articulated in hydraulic actuating cylinder 5 between tractor frame 2 and the lever 7, described lever 7 is along the horizontally set of tractor frame 2, the one end is hinged by first connecting rod 8 and left rocking arm 3, and its other end is hinged by second connecting rod 8 ' and right rocking arm 3 '.Described lever 7 and the preferential position intermediate of selecting to be positioned at lever 7 of the hinge-point of tractor frame 2, like this, the amplitude of two drive wheel backswings is identical, and the axis projection of adjusted two drive wheels in horizontal surface is located along the same line.
The utility model is not limited to above-mentioned embodiment, for example, second end of left side rocking arm 3 and right rocking arm 3 ' directly is sheathed on the outer peripheral face of left takeoff output semiaxis 11 and right takeoff output semiaxis 11 ', also can realize: during the hydraulic actuating cylinder lifting, lever swings up and down around its hinge-point, and then, drive left rocking arm and the backswing simultaneously of right rocking arm by first connecting rod and second connecting rod.But this moment, left takeoff output semiaxis 11 and right takeoff output semiaxis 11 ' will be subjected to the extra application force from left and right rocking arm, thereby shorten the service life of change speed gear box.
In a word, the utility model is simple in structure, low cost of manufacture, each parts is stressed rationally, on the basis of existing walker tractor, directly simply transform, just can make it to be adapted at bigger mountain region of the gradient or intersected country and use, also can be fit to have the Tillage machine for fields and gardens use of two drive wheels.
Claims (3)
1. improved height difference apparatus for tractor driving wheel, but the left rocking arm (3) and the right rocking arm (3 ') that comprise the final transmission case body of double as, described left rocking arm (3) and right rocking arm (3 ') have first end that is installed on left driving wheel (4) and right drive wheel (4 ') respectively, with second end around the outer peripheral face of left takeoff output semiaxis (11) and right takeoff output semiaxis (11 '), it is characterized in that: second end of described left rocking arm (3) is rotationally around the outer peripheral face of described left takeoff output semiaxis (11), and second end of described right rocking arm (3 ') is rotationally around the outer peripheral face of described right takeoff output semiaxis (11 '); It also comprises a lever (7) that is articulated in tractor frame (2), and be articulated in hydraulic actuating cylinder (5) between tractor frame (2) and the lever (7), described lever (7) is along the horizontally set of tractor frame (2), the one end is hinged by first connecting rod (8) and left rocking arm (3), and its other end is hinged by second connecting rod (8 ') and right rocking arm (3 ').
2. improved height difference apparatus for tractor driving wheel as claimed in claim 1, it is characterized in that: it also comprises around the outer peripheral face of described left takeoff output semiaxis (11) and is fixed in the left support sleeve (6) of gear box (1) and around the outer peripheral face of described right takeoff output semiaxis (11 ') and be fixed in the right support sleeve (6 ') of gear box (1); Second end of described left rocking arm (3) is sheathed on the outer peripheral face of described left support sleeve (6); Second end of described right rocking arm (3 ') is sheathed on the outer peripheral face of described right support sleeve (6 ').
3. improved height difference apparatus for tractor driving wheel as claimed in claim 2 is characterized in that: the hinge-point of described lever (7) and tractor frame (2) is positioned at the midway location of lever (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200189856U CN201021087Y (en) | 2007-03-01 | 2007-03-01 | Improved tractor driving wheel differential height device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200189856U CN201021087Y (en) | 2007-03-01 | 2007-03-01 | Improved tractor driving wheel differential height device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021087Y true CN201021087Y (en) | 2008-02-13 |
Family
ID=39088499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200189856U Expired - Fee Related CN201021087Y (en) | 2007-03-01 | 2007-03-01 | Improved tractor driving wheel differential height device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021087Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979027A (en) * | 2014-04-16 | 2014-08-13 | 孙春杰 | Liftable walking tractor |
| CN104925125A (en) * | 2015-05-18 | 2015-09-23 | 苏州先锋物流装备科技有限公司 | Two-stage gear transmission steering mechanism |
-
2007
- 2007-03-01 CN CNU2007200189856U patent/CN201021087Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979027A (en) * | 2014-04-16 | 2014-08-13 | 孙春杰 | Liftable walking tractor |
| CN104925125A (en) * | 2015-05-18 | 2015-09-23 | 苏州先锋物流装备科技有限公司 | Two-stage gear transmission steering mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105752185A (en) | Hybrid robot capable of switching wheel leg gaits based on changes of gear train properties | |
| CN202180752U (en) | Full-hydraulic four-wheel drive high-installed multifunctional paddy field motor vehicle | |
| CN201021087Y (en) | Improved tractor driving wheel differential height device | |
| CN106688742A (en) | Contour line planting slope laminating machine with driving wheel adjusted by cam mechanism and using method thereof | |
| CN103332256B (en) | The Human power car that can take exercises | |
| CN100519251C (en) | Modified height difference apparatus for tractor driving wheel | |
| CN100409736C (en) | Differential driving sprit transplanting mechanism of step rice transplanter | |
| CN2920713Y (en) | Tractor driving wheel height difference regulator | |
| CN204674765U (en) | A kind of bicycle driving device without the electrodeless adjustable speed of chain | |
| CN2915631Y (en) | Single wheel controlled two-wheeled steering mechanism for vehicle | |
| CN101041327A (en) | Tractor driving wheel height difference regulating device | |
| CN201919302U (en) | Bidirectional tilling machine used in sloping field | |
| CN2923397Y (en) | Mechanical height-difference adjusting device of tractor driving wheel | |
| CN204161597U (en) | A kind of bicycle | |
| CN100519252C (en) | Mechanical height difference regulating device for tractor driving wheel | |
| CN200967417Y (en) | Height difference apparatus for tractor driving wheel | |
| CN207607565U (en) | A kind of four-wheel steering universal chassis of Parameter adjustable | |
| CN207906426U (en) | A kind of gear box of tractor gearshift | |
| CN204587206U (en) | A kind of bicycle driver | |
| CN100519253C (en) | Height difference apparatus for tractor driving wheel | |
| CN202340388U (en) | Four-wheel driven multifunctional boat-tractor | |
| CN205273185U (en) | Crawler tractor operating mechanism that shifts | |
| CN204623740U (en) | Bicycle driver | |
| CN201566490U (en) | Gear selecting and shifting transition device for right-side cab heavy-duty truck | |
| CN101678858B (en) | Running vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20100301 |